In response to One Thought - The statistics here are for OECD countries only. Afghanistan is not an OECD member-country. The figures here are based on official reports; however, it is known that there is inadequate surveillance of cannabis use in many countries.

Many people are questioning whether or not cannabis should be legalised in the UK. Cannabis can cause paranoia, restlessness, mood swings, hunger or even psychosis in large amounts. The main active ingredient in cannabis is tetrahydrocannabino (THC). This leads to arguments against cannabis being legalised in the UK. The plant contains more than 400 chemicals, including cannabidiolic acid, an antibiotic with similar properties to penicillin, but different chemical of the plant can be used for medicinal or recreational purposes.